[PATCH v2 02/10] qemuxml2argvmock: Drop link time dependency on qemuFDPassDirectNew()

[Michal Privoznik <mprivozn@xxxxxxxxxx>]

While Linux linker has no trouble resolving the symbols, valgrind
does. It has probably something to do with the fact that we don't
tell what symbols to export from mock libraries. Anyway, just
resolve the symbol at runtime.

Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
Reviewed-by: Daniel P. Berrangé <berrange@xxxxxxxxxx>
---
 tests/qemuxml2argvmock.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tests/qemuxml2argvmock.c b/tests/qemuxml2argvmock.c
index 9cc97199c4..7bcad7284d 100644
--- a/tests/qemuxml2argvmock.c
+++ b/tests/qemuxml2argvmock.c
@@ -40,6 +40,8 @@
 
 #define VIR_FROM_THIS VIR_FROM_NONE
 
+static qemuFDPassDirect * (*real_qemuFDPassDirectNew)(const char *name, int *fd);
+
 long virGetSystemPageSize(void)
 {
     return 4096;
@@ -212,6 +214,10 @@ qemuInterfaceOpenVhostNet(virDomainObj *vm G_GNUC_UNUSED,
     size_t vhostfdSize = net->driver.virtio.queues;
     size_t i;
 
+    if (!real_qemuFDPassDirectNew) {
+        VIR_MOCK_REAL_INIT(qemuFDPassDirectNew);
+    }
+
     if (!vhostfdSize)
          vhostfdSize = 1;
 
@@ -222,7 +228,7 @@ qemuInterfaceOpenVhostNet(virDomainObj *vm G_GNUC_UNUSED,
         g_autofree char *name = g_strdup_printf("vhostfd-%s%zu", net->info.alias, i);
         int fd = STDERR_FILENO + 42 + i;
 
-        netpriv->vhostfds = g_slist_prepend(netpriv->vhostfds, qemuFDPassDirectNew(name, &fd));
+        netpriv->vhostfds = g_slist_prepend(netpriv->vhostfds, real_qemuFDPassDirectNew(name, &fd));
     }
 
     netpriv->vhostfds = g_slist_reverse(netpriv->vhostfds);
-- 
2.43.2
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